Yokohama-based atelier Level Architects has completed 'House with a Slide', a three-storey family residence that features a continuous circulation route that utilizes both stairs and the playground equipment. Circumscribing the volume of the house, the playful layout places the living spaces at the core of the house with a number of access points along the course. Since the circulation is placed at the outer edge of the design, the interior is largely lit using vertical openings in the roof. A centrally-placed courtyard with sliding glass doors illuminate the living room with natural daylight while creating a small play area for the children of the house. Rounded corners of the layout encourages the light to wash around edges to further light the space.